Sig Sauer 8900039 P320 TXG Grip Module | Full-Size | Medium

The Sig Sauer 8900039 P320 X-Series TXG Grip Module is a medium-sized, full-size grip module designed for the Sig P320 family. It uses a tungsten-infused polymer construction intended to add mass while retaining polymer flexibility. Intended uses include competition and precision training applications where grip ergonomics and controllability matter. This module requires a complete P320 Fire Control Unit and an X5 or full-size slide assembly to operate.

Product Specifications

• The manufacturer is Sig Sauer.
• The manufacturer part number is 8900039.
• The product type is a Grip Module.
• The model series is P320 X-Series TXG.
• The listed fit is for full-size Sig P320 (4.70″).
• The stated material is tungsten-infused polymer.
• The frame finish/color is Gray.
• The external finish is Matte.
• The documented grip size is Medium.
• The listed size classification is Full-Size.
• The assembly style is Assembly.
• The module is categorized under Grips.
• Compatibility requires a complete P320 Fire Control Unit and an X5 or full-size slide assembly.
• The make is Sig Sauer.
• The UPC is 798681619061.

This X-Series TXG grip module blends a higher mass feel with polymer flexibility to give the P320 platform a different balance and handling characteristic without changing the fire control unit. The medium grip geometry and full-size footprint suit target and competition-oriented use, and the gray matte finish keeps the appearance restrained and functional. For builders and competitors seeking a full-size P320 chassis option, the TXG offers a distinct construction approach compared with standard polymer modules.